Sumireko and Adashino work and chat together in the quiet of the bookshop where they're employed. Their manager appears and gives Sumireko a strange book of unknown origins. Just after midnight, she casually picks it up to read it, and then...
Now that it's been a week, 
I can't overlook it anymore.
،بما أنه قد مضى أسبوع
.فلم يعد بوسعي التغاضي عن الأمر
Sie fehlt schon eine Woche …
Da muss doch mal jemand nachsehen.
Es que hace una semana que no viene.
Es que hace una semana que no viene.
Ça fait une semaine, maintenant,
je peux plus ignorer ça.
È passata una settimana ormai,
non posso più chiudere un occhio.
Agora que já passou uma semana,
não posso mais ignorar isso.
Огавы уже неделю нет,
я должен знать, что случилось!